Last week, researchers studying a dinosaur named Microraptor published the results of a remarkable discovery: this small, four-winged dinosaur was covered from head-to-toe in black feathers, but shone with a glossy hint of blue. In other words, its plumage was iridescent.

What color were the dinosaurs? It's a question that people have puzzled over for close to 200…
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io9 hosted a live webcast last week at the American Museum of Natural History with renowned paleontologist Mark Norell and AMNH principle senior artist Mick Ellison (both of whom were involved in the Microraptor research), and field questions from viewers about their research. For those of you who missed it, here's the webcast in its entirety!